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New Cat® 2.7- To 3.5-Tonne Mini Hydraulic Excavators Offer Class-Size Industry-First Features

Original source: Caterpillar

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Boosting operating efficiency, servicing ease and operator comfort, the new Cat® 302.7 CR, 303 CR and 303.5 CR hydraulic mini excavators introduce industry-first features for the 2.7- to 3.5-tonne class machines. Built on the Next Generation platform that offers a consistent operator experience through the 1.5- to 10-tonne range, each new model features exclusive stick steer, cruise control, operator adjustable settings, and tilt-up canopy or cab as standard.


Expanded use of common parts throughout the line plus their damage-resistant exterior construction help to reduce parts inventory investment and lower repair costs. Daily maintenance checks are quickly made from ground level through side doors, while the tilt-up cab design offers unmatched access to components for servicing. Increased service intervals mean these excavators spend more time on the job and less time in the workshop. Combined, these features lower total ownership costs up to 5% compared to previous models.


At the same time, design enhancements for the new 302.7 CR, 303 CR and 303.5 CR deliver up to 10% more performance in travel and trenching. Hydraulic system upgrades improve lifting performance and cycle times, while customizable operator settings improve efficiency.


The turbocharged Cat C1.1 Turbo engine powers the 302.7 CR and 303 CR models, while the Cat C1.7 anchors the powertrain for the 303.5 CR. Both engines meet U.S. EPA Tier 4 Final emissions standards and offer 23.6 hp (17.6 kW) net power. Standard auto idle and auto engine shutdown help to conserve fuel usage at the site for more affordable operation.


Flexibility increases performance These Next Generation mini hydraulic excavators feature a compact radius swing that reduces overhang when working to the side, allowing the machines to optimize performance in confined spaces. Fixed undercarriage widths for the 302.7 CR, 303 CR and 303.5 CR of 59.1, 61.0 and 70.1 in (1,500, 1550 and 1780 mm) respectively, deliver the right balance of job site accessibility and stability for lifting performance. An expandable undercarriage option for the 302.7 CR allows the operator to hydraulically retract track width to 53.3 in (1355 mm) for fitting into confined spaces and then expand width to 70.1 in (1780 mm) for superior digging and lifting stability.


Interchangeable counterweight packages enable customers to tailor machine weight to job requirements, offering the balance between low ground pressure and lifting performance. The “light” counterweight option adds 221 lb (100 kg) to machine weight, while the “extra” adds 551 lb (250 kg).


All three Next Gen models offer both standard- and long-stick configurations to increase machine versatility. Standard digging depths range from 96.5 to 110.6 in (2450 to 2810 mm), while the long stick configuration allows the machines to reach from 104.3- to 122.4-in (2650- to 3110-mm) depths. The standard dozer blade further increases machine flexibility to handle backfilling and grading tasks. It features ample above- and below-grade travel and has a standard float function for easy clean-up. An angle blade option on the 303.5 CR gives further flexibility in backfilling applications for increased productivity.


Efficient load-sensing hydraulics with variable displacement pump provides oil flow reaching 26 gal/min (100 L/min) while saving fuel. High main-relief pressures, coupled with flow rates, generates the hydraulic capacity for high digging and lifting forces and more efficient use of a range of attachments. Complete with quick-disconnect lines, the standard auxiliary system provides the choice of one-way, two-way or continuous flow.


Comfortable experience The new 302.7 CR, 303 CR and 303.5 CR offer enhanced machine security options, with both a passcode and Bluetooth key start available. Offering an advanced touchscreen option, the large Next Generation display provides intuitive machine function control and easy monitoring of critical operating parameters, such as fuel level, coolant temperature and maintenance records.


An industry-exclusive Cat Stick Steer System simplifies machine control, and, at the touch of a button, the operator switches from conventional lever/foot-pedal steering controls to low-effort joystick operation. Two travel ranges with speeds reaching 2.8 mph (4.5 km/h) help to facilitate moving around the jobsite, and standard cruise control minimizes operator interaction when traveling longer distances between work locations.


Unique to their respective classes, these new Next Generation excavators offer the choice between canopy or cab enclosure. The sealed and pressurized cab offers a clean and quiet environment for the operator and can be equipped with heating and/or air conditioning for all-weather climate control. Offering a front window that slides upward to conveniently store overhead, the cab’s large glass areas plus skylight afford all-around visibility.


More information on the new 302.7 CR, 303 CR and 303.5 CR mini hydraulic excavators can be found by contacting the local Cat dealer or visiting: https://www.cat.com.



... GO TO New Cat® 2.7- To 3.5-Tonne Mini Hydraulic Excavators TO READ MORE

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